We work to assess and address specific application needs so we can specify and develop a turbine system package that meets and exceeds goals. Nptel video course ocean engineering applied thermodynamics for marine systems subject coordinator prof. In noncondensing turbines or backpressure turbines, steam exhausts at a pressure greater than. I searched the info about the model steam turbine,and i found the book in pdf file. Nevertheless modern steam turbines are very efficient and operate with internal efficiencies within the range of 80 percent to 90 percent depending upon the steam conditions. Pdf power plant lecture notes chapter4 steam turbine. Our steam turbines work as generator drives or as mechanical. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Gas turbines can be used in poweronly generation or in combined heat and power chp systems the most efficient commercial technology for central station poweronly generation is the gas turbine steam turbinecombinedcycle plant, with efficiencies approaching 60 percent lower heating value lhv. Applied thermodynamics for marine systems nptel online videos. Nptel mechanical engineering videos video lectures, classes, courses, video clips, tutorials and video downloads from iits, mit, standford and other top educational institutions. Steam turbine, which of the design is effective model. Steam turbineimpulse lecture reaction turbine compounding. Steam turbine working principle and types of steam turbine.
A highvelocity steam is coming from the nozzles and it strikes the rotating blades which are fitted on a disc mounted on a shaft. A steam turbine is a mechanical device that extracts thermal energy from pressurized steam and transforms it into mechanical work. Steam and gas power systems from indian institute of technology. Take, for instance, a 600 kw steam turbine selected to drive a small, but essential, process gas compressor. Steam for turbine is provided by pp330140p55 type steam generator, a oncethrough coalfired boiler 8. Nov 01, 2007 a good example is a plant where there were several 2 or 3 mw gp steam turbines driving cooling water pump sets. Because the turbine generates rotary motion, it is particularly suited to driving electrical generators about 90% of all electricity generation in the united states 1996 is by use of steam turbines 1 wiser. The basic element in a turbine is a wheel or rotor with addles, propellers, blades, or buckets arranged on its circumference in. Superheating the steam to higher temperatures has very desirable effect. Mechanical engineering video lectures from nptel, iit, mit. The steam turbines are widely used in power generation, refineries and petrochemical industries.
For low and moderate inlet steam pressure up to 120 bar, a single shell. Steam power engineering video, nptel open course, click here. There are two classical types of turbine stage designs. It steam power plant decreases the moisture content of the steam at the turbine exit as can be seen in ts diagram as shown in figure 2.
Working principle of steam turbine depends on the dynamic action of steam. By steam engine i am assuming you mean a steam reciprocating engine, compared to a steam turbine. The goal of a turbine is to convert mechanical energy into electrical energy. For this, a steam separator is fitted before the steam engine or steam turbine to separated water particles from steam. The governor is a control component with advanced protections for the turbine which ensure safe operation of the turbine. With over a century of experience and continuous development in our steam turbine technology, siemens is a prime partner for your business. This highvelocity steam produces dynamic pressure on the blades in which blades and shaft both start to rotate in the same direction. Turbines in ohio, kentucky and indiana lathrop trotter. Ic engines and gas turbines from indian institute of technology guwahati. These are both steam engines and more efficiency is gained by the number of expansions that take place. The temperature to which steam can be superheated is limited by metallurgical consideration. Despite efforts to develop alternative energy converters, electricity from steam will continue, for many years, to provide the power that energizes the united states and world economies. Parsons main thrust for the steam turbine was for generating electrical power, but he also had his eyes on applying the steam turbine to drive ships of all kinds. It identifies the basic components of a singlestage steam turbine and describes the function of each.
Design, application and rerating explains to readers how steam turbines should be selected, operated, maintained and improved. I downloaded the book from library of the university of california. Applied thermodynamics for marine systems online course. Apr 06, 2010 lecture series on applied thermodynamics for marine systems by prof. See more ideas about steam turbine, abandoned factory and industrial photography. In this article, we will discuss steam turbine basic parts. Saturated steam obtained from all types of industrial boilers contains some water particles which decries the economy and efficiency of steam engines and steam turbines. More than 120,000 steam turbines delivered worldwide prove that we are a reliable and experienced partner. A steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into rotary motion. Lathrop trotter is the source for gas and steam turbines, turbine generator sets, and combined heat and power solutions. Lecture 11 basic concept of turbine, velocity diagram lecture 12 steam turbineimpulse lecture reaction turbine compounding lecture 14 comparison of different staging arrangement. This article focuses on marine steam turbines and their applications.
Steam turbine governing and its mechanism ece tutorials. Its modern manifestation was invented by charles parsons in 1884 the steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple stages in the expansion of the steam, which results. A turbine stage normally consists of a row of stationary blading and a row of rotating blading. Which is more efficient, a steam engine or a steam turbine. Your browser does not currently recognize any of the video formats available. A steam turbine uses thermal energy from pressurised steam to do mechanical work. The governor does this function by controlling the steam flow through the turbine by adjusting the control value. Gas turbines are available in sizes ranging from 500 kilowatts kw to 250 megawatts mw. Its modern manifestation was invented by charles parsons in 1884 the steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple stages in the expansion of the steam, which results in.
The book is well written about the model steam turbine and how to calculate and make the steam turbine. Gas turbines can be used in poweronly generation or in combined heat and power chp systems the most efficient commercial technology for central station poweronly generation is the gas turbinesteam turbinecombinedcycle plant, with efficiencies approaching 60 percent lower heating value lhv. It has almost completely replaced the reciprocating piston steam engine primarily because of its greater thermal efficiency and higher powertoweight ratio. Prior to supplying steam to the turbine, the steam supply pipelines have to be drained and heated up. Rotor means which part rotate and stator means which part is fixed. Steam can then be used in conventional steam turbines, with the same options to. Steam turbine basic parts mechanical engineering site. Lec11 basic concept of turbine, velocity diagram youtube. In an extracting type turbine, steam is released from variousin an extracting type turbine, steam is released from various stages of the turbine, and used for industrial process needs or sentstages of the turbine, and used for industrial process needs or sent to boiler feed water heater to. Below is a transcript of the video sample provided for this module. Rocket turbine design emphasizes power density, because of the overriding concern for mass saving. Nptel provides elearning through online web and video courses various streams.
A good example is a plant where there were several 2 or 3 mw gp steam turbines driving cooling water pump sets. Nptel video lectures, iit video lectures online, nptel youtube lectures. This video introduces the operation of noncondensing, singlestage steam turbines in industrial facilities. Further information on stirling engines, including technology videos. Nozzle is the stator part of turbine means it is fixed part. Applied thermodynamics videos, lectures, classes, courses, books, tutorials nptel thermodynamics videos, thermodynamics video lectures, thermodynamics video classes.
Steam consumption of steam turbine is depending to required output power and efficiency of the turbine. The motive power in a steam turbine is obtained by the rate of change in momentum of a high velocity jet of steam impinging on a curved blade which is free to. Steam turbines are one of the most versatile and oldest prime mover technologies still in general production used to drive a generator or mechanical machinery. Schematic diagram of 200 mw unit 8 construction of the steam generator is carried out in two distinct bodies, symmetrical with the axis of the group, operating in parallel to the k2001 steam turbine. Power plant engineering study notes handwritten free study stuff. Here, it would be very uneconomicaleven wastefulto insist on sp turbines. Maintenance and overhaul of steam turbines wgp42 05.
It explains what a steam turbine does and describes how steam turbines are used in industrial applications. Boiler mountings and accessories details with video lecture. Latest technologies and future prospects for a new steam. In the second part of this series, the author talked about the story of the first little toy turbine. Moreover, 50inch blades for 3600 rpm and 60inch blades for 3000 rpm with further enhanced. The first steam turbine used for power generation was invented in 1884. The casing shape and construction details depend on whether it is a high pressure hp or low pressure lp casings. Lecture series on applied thermodynamics for marine systems by prof. Efficiency, while clearly a consideration, takes a less prominent role than in aircraft turbine design. Lec10 steam power cycle, steam nozzle lecture series on applied thermodynamics for marine systems by prof. Nptel video lecture topic list created by linuxpert.
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